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Finding the Fourth Proportional to 316,256.82, 436,444.74 and 173,016.87

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Solution

The fourth proportional to 316,256.82, 436,444.74 and 173,016.87 is: 238,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,256.82 : 436,444.74 = 173,016.87 : x
  2. Step 2: Convert to fraction form
    316,256.82/436,444.74 = 173,016.87/x
  3. Step 3: Cross multiply
    316,256.82x = 436,444.74 × 173,016.87
  4. Step 4: Simplify right side
    316,256.82x = 75,512,302,842.76
  5. Step 5: Solve for x
    x = 75,512,302,842.76/316,256.82
  6. Step 6: Final answer
    x = 238,768.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.